Assembly arrangement of the cradle that lifts the bag intothe bagging position to arrange the same on the grain bagger tunnel

ABSTRACT

A tubular structure of rectangular plant arranged mounted on the distal end of both pairs of rotating arms ( 13/14 ) ( 15/16 ) that extend backwards from a lower sector of the machine, below the tunnel (C). The rotating arms constitute a system of distorting parallelograms that define a lifting equipment capable of displacing the cradle to be arranged over the external surface of the tunnel. The pairs of rotating arms extend from respective elongated plates ( 8 ) fixed to the machine body, extending towards outside, exceeding the line of the back edge of the tunnel. From the free end of the plates there extend the pairs of rotating arms, and extend up to connecting with the curved side ( 6 ) further away from the tubular structure that constitutes the cradle, keeping the same oriented towards the machine. The distal ends of the pairs of rotating arms are fixed in the respective upper rotating points defined in both fixed flat plates ( 21 ) and ( 22 ), supportive of the cradle

SCOPE OF THE INVENTION

The main object of this utility model is a NEW ASSEMBLY ARRANGEMENT OFTHE CRADLE THAT LIFTS THE BAG INTO THE BAGGING POSITION TO ARRANGE THESAME ON THE GRAIN BAGGER TUNNEL, so that the need of manually moving thefolding bag from the cradle that lifted the same up to the top tunnel ofthe grain bagger, is thoroughly removed, to arrange it supported overthe external face thereof, so that it hangs forming a tubular body ofsubstantially circumferential section.

Specifically, the present utility model encompasses a new assemblyarrangement that takes the above mentioned cradle that lifts and placesthe bag into the bagging position, which folding bag is received, liftedand then positioned over the curved tunnel of the grain bagger beingready to be used.

As it is already known, the referenced cradle that receives the foldingbag to be positioned over the tunnel, is kept by a lifting equipmentbasically formed by two pairs of articulated side arms that define thesystems of distorting parallelogram, which turn round on an angularbasis so as to lift the same up to arrange it in a coplanar way andadjacent to the machine tunnel.

Then, the user has to proceed to move the holding and lifting bag, bymanually displacing it from the cradle to the tunnel, so as to arrangeit supported over its curve surface, so that it keeps hanging and takingthe above mentioned tubular shape.

This new assembly which the present utility model refers to allows thesame cradle supported by the pairs of articulated arms, to be totallyarranged over the tunnel, removing the above mentioned need to handlethe bag, thus avoiding all the inconvenient this may cause.

It deals about a new arrangement obtained on known objects that rendersa better use of the function to which they are intended. Accordingly,such new arrangement may be protected under the concept of Utility Modelset forth by the Invention Patents Act under the articles 53 to 58.

PREVIOUS ART

As it is already known the grain baggers of dry grains in bags hold afixed structural tunnel that defines a curved surface ofsemi-circumferential section, which diameter is equivalent to the onethe bag will have when filled with grains.

The tunnel so made acts as a receiving rigid support of the folding bag,designed to position the bag so that it may go unfolding as it is filledwith grains being discharged thereon.

Once the folding bag is positioned over the tunnel, the first unfoldingis carried out to make up an end sealing that is carried out beforestarting the grain feeding load

As it is already known, then it follows the entering of bulk grains massthat are received by the top hopper so that, as the internal pressureinto the hopper increases, the bag is progressively unfolding as aconsequence of the displacement, in an opposite sense of the load, thatis being made by the machine, remaining in suitable conditions tocontinue receiving grains on a constant basis.

It remains clear that to carry out the whole load and feeding processexplained in the foregoing paragraphs, it comes to be extremelyimportant that the folding bag being supported by the surface thatdefine the top external face of the tunnel.

The problem appears when the assembling of the bag should be carried outover the tunnel as, the cradle only shows the bag lifted and adjacent tothe tunnel body. The user has to manually dissemble the bag from thecradle and move it to the position over the tunnel.

This manual loading, moving and positioning, is extremely uncomfortableto be made manually, above all due to the proper weight of the foldingbag, being necessary, in most cases, the cooperation of various people.

Presently, these cradles comprise a light tubular and curved structure,comprised of a pair of elongated loading skids with a curved shape whichcurvature has a diameter equal or similar to the one that defines thetunnel body.

Such loading skids with a curved shape, are kept bonded and parallel bya group of members that extend between both to confer a structuralrigidity to the cradle, being the separation established between themwhich determines the width of the cradle structure.

This constitutive structure of a cradle is mounted on the top free endof a lifting equipment that comprises of both pairs of arms extending ina rotating way from a vertical fixed supporting plate that the machinehas below the tunnel, making up a system of distorting parallelogram.

With the rotation of the mentioned rotating arms, the cradleprogressively lifts, up to being arranged adjacent to the tunnel.

However it is worthwhile mentioning that the arrangement of these pairsof rotating arms in the above mentioned fixed plate of the grain baggerand, above all the location of the rotating point where the assembly inthe structure that constitutes the cradle body is produced, preventssaid cradle from being arranged above the tunnel.

It just reaches to locate adjacent thereto, requiring the user to makethe referred manual work to draw the bag from the cradle and move it soas to arrange it over the tunnel.

DESCRIPTION OF THE INVENTION

The new assembly arrangement of the cradle of the folding bag, hasspecifically been created so that it is duly positioned over the grainbagger tunnel, directly, without being necessary any manual moving.

Indeed, the light tubular structure that gives a curved shape to theabove explained cradle keeps unalterable, being always the same; neitheraltering nor disappearing the above mentioned pairs of arms that extendin a rotating way from the supporting fixed plate, however, with theassembly established according to the present invention, the cradle maybe arranged directly over the top and external surface of the tunnel.

The novelty being incorporated and encompassed by the register of thisutility model is based on the following two assembly conditions, namely:

-   -   1. The above mentioned pairs of rotating arms that constitute        the above mentioned lifting equipment, extend towards outside,        in the longitudinal direction of the machine, from a respective        fixed and lower elongated plate that, mounted on the machine        structure extends towards outside beyond the space that defines        the tunnel, so that the respective articulations of lower pivot        of said rotating arms, are arranged lower outside the space that        determines the tunnel;    -   2. Meanwhile the same pairs of rotating arms of the lifting        equipment extend up to the respective points of upper        articulated bonding that are located in correspondence with the        curved member further away from the machine that has the above        mentioned cradle.

As from these novel assembly conditions, when the cradle, holding thefolding bag is lifted, both pairs of rotating arms may turn around up toposition the bag in an upper level, above the height level thatconstitute the tunnel, after which nothing prevents both pairs of armsfrom continuing turning around as regards their rotating points, inwhich case, the same cradle turns back a short path and decreases itsheight till being arranged over the tunnel.

In order to command and control the turning movement made by the abovementioned pairs of rotating arms, it is possible to use a little winchof manual driving or, to use an hydraulic engine associated thereto,which pulling cable before getting associated to the cradle, will passthrough a free pulley mounted fixed to an upper point, through which itis possible to lift the cradle allowing the same, besides the ascendantdisplacements produced by the pairs of supporting rotating arms, make afirst displacement forwards, and then a second displacement backwards,up to being located over the tunnel.

The cradle without holding the folding bag may also be arranged over thetunnel during the machine movements.

BRIEF DESCRIPTION OF THE FIGURES

In order to carry out the above mentioned advantages, to which the usersand those experts in the art may add many things more, and so as tofacilitate the understanding of the constructive, constitutive andfunctional characteristics of the invention, a preferred exampleembodiment is described in the enclosed sheets below which isillustrated schematically and without a determined scale, beingexpressly established that, just for being an example, is not limitingor exclusive of the scope of the present utility model, but it is merelyintended to fully express and illustrate the basic meaning of theinvention.

FIG. 1 is a perspective view that represents a grain bagger speciallymanufactured to operate in bagging positions.

FIG. 2 is a schematic view in a longitudinal section, as per a verticalplan, of the same machine of the previous figure.

FIG. 3 is an enlarged detail that represents how the cradle assembly ismade in the lifting equipment containing the cradle.

FIG. 4 is a lateral view of the grain bagger showing the cradle in alower position, suitable for receiving a folding bag.

FIG. 5 is a lateral view that represents the same machine as theprevious figure, in this case showing the cradle in an intermediateposition in the path that has to be made so as to lift and move thefolding bag.

FIG. 6 is a lateral view similar to the one representing the previousfigure, in this case showing the same cradle located over the tunnel, asit is positioned during all the feeding and filling process being madeby the machine in the bagging position.

It is clear that, in all the figures, same reference numbers and letterscorrespond to the same or equivalent parts or elements that constitutethe group, according to the chosen example for the present explanationof the invented assembly.

DETAILED DESCRIPTION OF A PREFERRED EXAMPLE

As it can be appreciated in FIG. 1, the present utility model refers toa new assembly arrangement of the cradle (P) that lifts the bagging (notshown), that allows to arrange the bag over the top face (2) of thetunnel (C) that is possessed by the grain bagger (B).

Specifically, this figure schematically represents a grain bagger (B) ofthe type that holds a tunnel (C) that has a curved roof (2) that extendswith lateral walls to give a receiving seat to the folding bag.

Below the feeding hopper (V) there stands a communication mouth whereina feed auger (3) that drives the grains towards the interior of the bagbeing positioned turning round the tunnel, which goes unfolding as theinternal pressure produced by said grains mass generates thedisplacement of the machine in the opposite sense of the load.

The machine is completed with a rolling train (R), a drawing pipe (T)with its corresponding engagement (G), the hopper (V), and a gimbledtransmission (4) where the actuator for the referred feed auger takesthe command from (3), as well as, eventually, to the winch (not shown)that produces the lifting of the lifting equipment (S) that holds suchcradle (P).

It is appreciated that this cradle (P) belongs to the type that is madeby a pair of curved, equal and parallel loading skids, one proximal (5)and the other one distal (6), which are kept joined by a group ofmembers (7), with a separating distance sufficiently wide as to be ableto suitably receive the folding bag.

As it is specially shown by FIG. 2, the new assembly arrangement of thecradle (P) which the present utility model refers to, is defined withthe new lifting equipment (S) that, in this case, is made from a pair ofelongated planar plates (8) arranged in vertical parallel plans to thelongitudinal direction of the machine, which extend from a substantiallyvertical wall (9) located in a back plan, within the space enclosing thetunnel (C).

Specifically, FIG. 2 shows one of said pair of elongated fixed plates(8), being possible to observe that the same extends towards outsideclearly protruding of the edge line of said tunnel (C), and following adescendant right line.

Each elongated plate (8), in correspondence with its free end, defines aperipheral side (10) where the lower rotating points (11) and (12) ofthe pairs of rotating arms are formed which, together with saidelongated plates constitute the referred lifting equipment (S).

Said rotating arms, identified with the reference numerals (13), (14),(15) and (16) extend to associate with the cradle (P) in the upperrotating points (17), (18), (19) and (20) that are formed in the rigidtriangular flat plates (21) and (22) (shown in FIG. 1) supportive to thecradle.

As it is specially shown in the detail that represents the FIG. 3., thenovelty characterizing the assembly that encompasses the present utilitymodel, is based on the fact that said rigid flat plates (21) and (22)are mounted in correspondence with the distal curved member (6) thatconstitutes the cradle body, the cradle extends projecting from.

As it is specially shown in FIG. 6, this projecting of the cradle body,together with the new location of the lower rotating points (11/11′) and(12/12′) of the pairs of the rotating arms ((13/14) and (15/16) of thelifting equipment (S), is the one that allows to arrange the cradle overthe curved roof (2) of the tunnel (C).

Under the mentioned conditions, FIGS. 4, 5 and 6 respectively representthe different positions that the cradle is taking as it is lifted up tobe positioned over the tunnel.

FIG. 4 represents the cradle in the lower position that is taken toreceive the folding bag. It is appreciated that, in this position, saidcradle (P) is arranged in the further away position from the tunnelkeeping free spaces so that users may work comfortably in the bagplacement.

FIG. 5 shows the cradle in an intermediate lifting position of itsascendant path. It is appreciated that the cradle body (P) by keepingits horizontal arrangement, is nearer to the tunnel, in this case therotating arms have made an ascendant angular movement.

Finally, FIG. 6 shows the cradle duly positioned over the tunnel whichis the definitive position that takes to keep the folding bag in the usearrangement. The cradle (P) stays superimposed following the samecurvature degree than the tunnel, remaining as a light structureinserted between the bag and the tunnel.

1. NEW ASSEMBLY ARRANGEMENT OF THE CRADLE THAT LIFTS THE BAG INTO THEBAGGING POSITION TO ARRANGE THE SAME ON THE GRAIN BAGGER TUNNEL, beingthe cradle a tubular structure of rectangular plant, that keeps an equalcurvature as the tunnel, and it is arranged mounted in the distal endsof both pairs of rotating arms that extend backwards from a lower sectorof the machine, below the tunnel, where said pairs of rotating armsconstitute a system of distorting parallelograms that define a liftingequipment of the cradle capable of angularly displacing, keeping thecradle in horizontal position, and lifting the same up to being arrangedover the external upper surface of the tunnel, characterized by thepairs of rotating arms that extend from respective elongated platesfixed to the machine body, which plates extend towards outside,exceeding the line of the back edge of the tunnel; from the free end ofsaid plates there extend the mentioned pairs of rotating arms, andextend up to connecting with the curved side further away from thetubular structure that constitutes the cradle, keeping the sameprojecting, and oriented towards the machine.
 2. NEW ASSEMBLYARRANGEMENT OF THE CRADLE THAT LIFTS THE BAG, according to claim 1,characterized by the distal ends of the pairs of rotating arms thatconstitute the lifting equipment of the cradle, being fixed in therespective upper rotating points defined in both fixed flat plates,supportive of the cradle in correspondence with its curved further awayside.
 3. NEW ASSEMBLY ARRANGEMENT OF THE CRADLE THAT LIFTS THE BAG,according to claim 1, characterized by the elongated plates fixed to themachine body, being supportive to an internal vertical plate that isdefined below the tunnel.
 4. NEW ASSEMBLY ARRANGEMENT OF THE CRADLE THATLIFTS THE BAG, according to claim 1, characterized by the elongatedplates fixed to the machine body, extending parallel to the longitudinalaxis of the group.